FERN GAZ. 18(5):216-229. 2009 216 A SUMMARY OF INDIAN CHEILANTHOID FERNS AND THE DISCOVERY OF NEGRIPTERIS (PTERIDACEAE), AN AFRO-ARABIAN FERN GENUS NEW TO INDIA C.R. FRASER-JENKINS1 & C.S. DULAWAT2 1Student Guest House, Thamel, P.O. Box no. 5555, Kathmandu, Nepal (Email:
[email protected]) 2Bryology Laboratory, Dept. of Botany, University College of Science, M.L.S. University, Udaipur, Rajasthan - 313001, India (Email:
[email protected]) Key words: Cheilanthes, Aleuritopteris, Notholaena, Negripteris, fern, Rajasthan, India ABSTRACT A summary of Indian cheilanthoid ferns treated under nine genera includes three new names, Notholaena dipinnata Fras.-Jenk., Cheilanthes bhutanica Fras.- Jenk. & Wangdi and Cheilanthes tibetica Fras.-Jenk. & Wangdi, and five new combinations, Cheilanthes nitidula Hook. subsp. henryi (Christ) Fras.-Jenk., Aleuritopteris bicolor (Roxb.) Fras.-Jenk. & Dulawat, Aleuritopteris subdimorpha (C.B.Clarke & Baker) Fras.-Jenk. and Notholaena muelleri (Hook.) Fras.-Jenk. Negripteris scioana (Chiov.) Pic.Serm. (Pteridaceae), a close relative of both Aleuritopteris and Chrysochosma, was discovered by the second author in semi-arid conditions in the Kumbhalgarh and Sitamata Reserves of the Aravalli Hills in central Rajasthan, N.W. India, the first record for the Indian sub-continent. It was known previously only from N.E. Africa, Socotra and S. Arabia and is an Afro-Arabian species which, as now found, extends eastwards into the hills of the semi-arid region of W. India. INTRODUCTION The cheilanthoid ferns of India have at various times been placed in the families Sinopteridaceae, Negripteridaceae, Cheilanthaceae and Hemionitidaceae, but are now generally accepted as belonging to subfamily Cheilanthoideae, within Pteridaceae, with the other four families, among others, in its synonymy.